JP5382473B2 - Noise suppression device for compressed air system of vehicle - Google Patents

Noise suppression device for compressed air system of vehicle Download PDF

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JP5382473B2
JP5382473B2 JP2011515135A JP2011515135A JP5382473B2 JP 5382473 B2 JP5382473 B2 JP 5382473B2 JP 2011515135 A JP2011515135 A JP 2011515135A JP 2011515135 A JP2011515135 A JP 2011515135A JP 5382473 B2 JP5382473 B2 JP 5382473B2
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fin
suppression device
noise suppression
housing
sound insulation
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JP2011524553A (en
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ヘンドリツク ハルテイング，
ハインツ−ヴエルネル ケーニヒ，
トーマス ミユレル，
カルル−ハインツ リーデイゲル−ヤーニツシユ，
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ZF CV Systems Hannover GmbH
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Wabco GmbH
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T17/00—Component parts, details, or accessories of power brake systems not covered by groups B60T8/00, B60T13/00 or B60T15/00, or presenting other characteristic features
    • B60T17/002—Air treatment devices
    • B60T17/008—Silencer devices

Description

本発明は、車両の圧縮空気システム用騒音抑制装置であって、ハウジング、遮音手段及び少なくとも１つのひれを含み、ハウジングが空気入口及び空気出口を持ち、遮音手段がハウジング内に設けられ、それにより空気入口から空気出口へハウジングを通って流れる空気が、遮音手段を通って流れ、こうして騒音抑制が行われるものに関する。  The present invention is a noise suppression device for a compressed air system of a vehicle, comprising a housing, a sound insulation means and at least one fin, the housing having an air inlet and an air outlet, wherein the sound insulation means is provided in the housing, thereby The air flowing from the air inlet to the air outlet through the housing flows through the sound insulation means, and thus noise suppression is performed.

このような騒音抑制装置は、圧縮空気システムの排気の際発生される騒音を抑制するため、特に圧縮空気システムの排気装置に使用するのに適している。  Such a noise suppression device is particularly suitable for use in an exhaust device of a compressed air system in order to suppress noise generated during exhaust of the compressed air system.

このような騒音抑制装置は、例えばドイツ連邦共和国特許出願公開第１０２４８１８３号明細書及びドイツ連邦共和国実用新案第２０２００４０１１６３０号明細書に開示されている。  Such a noise suppression device is disclosed in, for example, German Patent Application No. 10248183 and German Utility Model No. 202004011630.

このような公知の騒音抑制装置の欠点は、空気流の少なくとも一部が遮音手段のそばを通って流れるか又はその下を通って流れ、それにより騒音抑制装置の抑制特性が弱められることである。  A drawback of such known noise suppression devices is that at least a part of the air flow flows by or under the sound insulation means, thereby weakening the suppression characteristics of the noise suppression device. .

従って本発明の課題は、騒音抑制装置の遮音手段を通る空気流の効果的な案内を行う騒音抑制装置を提供することである。  Therefore, the subject of this invention is providing the noise suppression apparatus which performs the effective guidance of the airflow which passes along the sound-insulation means of a noise suppression apparatus.

この課題は、独立請求項１に記載の騒音抑制装置によって解決される。  This problem is solved by the noise suppression device according to the independent claim 1.

有利な展開が従属請求項の対象である。  Advantageous developments are the subject of the dependent claims.

本発明による騒音抑制装置は、ハウジング、遮音手段及び少なくとも１つのひれを含み、ハウジングが空気入口及び空気出口を持ち、遮音手段がハウジング内に設けられ、少なくとも１つのひれが少なくとも部分的に遮音手段へ入り込むように、このひれがハウジング内に設けられ、空気入口から空気出口へハウジングを通って流れる空気が、少なくとも１つのひれにより遮音手段の中へ導かれる。  The noise suppression device according to the present invention comprises a housing, a sound insulation means and at least one fin, the housing having an air inlet and an air outlet, the sound insulation means being provided in the housing, and at least one fin being at least partially sound insulation means. This fin is provided in the housing so as to enter, and air flowing through the housing from the air inlet to the air outlet is guided into the sound insulation means by at least one fin.

これに関して“入り込む”という概念は、少なくともひれが遮音手段へ入り込む部分において、遮音手段が両側でひれの対向する側面に隣接することを意味する。遮音手段へ入り込むひれの部分の全外面が遮音手段に隣接しているのがよい。  In this regard, the concept of “entering” means that at least in the part where the fin enters the sound insulation means, the sound insulation means is adjacent to the opposing sides of the fin on both sides. It is preferable that the entire outer surface of the fin that enters the sound insulation means is adjacent to the sound insulation means.

少なくとも１つのひれは、空気流が遮音手段をできるだけ効果的に通り、特に空気流の一部が遮音手段の下を流れないようにする。ひれの構成特に高さ及び／又は直径は、騒音抑制装置の構造に応じて変化してもよい。  The at least one fin ensures that the air flow passes as effectively as possible through the sound insulation means and in particular that a part of the air flow does not flow under the sound insulation means. The fin configuration, particularly the height and / or diameter, may vary depending on the structure of the noise suppression device.

ひれがハウジングと一体に形成されているのがよい。例えばハウジングが蓋と底から構成され、少なくとも１つのひれが底及び／又は蓋と一体に形成されているようにすることができる。しかもこの場合ひれがハウジングと一体に形成されているようにする。これは安価なので好ましい。  The fins may be formed integrally with the housing. For example, the housing may be composed of a lid and a bottom, and at least one fin may be formed integrally with the bottom and / or the lid. In this case, the fins are formed integrally with the housing. This is preferable because it is inexpensive.

第１のひれが空気入口を包囲し、かつ／又は第２のひれが空気出口を包囲するのがよい。  The first fin may surround the air inlet and / or the second fin may surround the air outlet.

このような配置により、空気は入口から出口への途中で第１のひれ及び／又は第２のひれの周りを流れる。こうして空気流が効果的に遮音手段の中へ導かれる。しかし入り口及び／又は出口がひれにより部分的にのみ包囲されるようにすることも原則的に可能なので、空気流の一部のみがひれによって案内される。  With such an arrangement, air flows around the first and / or second fins on the way from the inlet to the outlet. Thus, the air flow is effectively guided into the sound insulation means. However, it is also possible in principle that the inlet and / or outlet is only partially surrounded by fins, so that only a part of the air flow is guided by the fins.

ハウジングと少なくとも１つのひれが、共通な軸線の周りに放射対称に形成されているのがよい。原則的に他の形状特に長円形又は長方形も可能である。  The housing and at least one fin may be formed radially symmetrically about a common axis. In principle, other shapes are possible, in particular oval or rectangular.

遮音手段が軸線の周りに巻付けられる編物から成る編物巻き体を含んでいてもよい。原則的に本発明は他の遮音手段でも使用される。特に複数の遮音材料を設けることができる。  The sound-insulating means may include a knitted wound body made of a knitted fabric wound around the axis. In principle, the invention is also used with other sound insulation means. In particular, a plurality of sound insulation materials can be provided.

編物巻き体と少なくとも１つのひれが互いに平行に延びるように設けられているのがよい。これはひれ及び編物巻き体の配置特に取付けを容易にする。なぜならば、ひれは編物巻き体の１つ又は複数の環で押し離すか又は押し寄せることができるからである。少なくとも１つのひれ、ハウジング及び編物巻き体が共通な対称軸線に沿って設けられ、ひれ及びハウジングが放射対称に形成されているのがよい。これは騒音抑制装置の非常にこじんまりした形状を可能にする。  The knitted fabric and at least one fin may be provided so as to extend parallel to each other. This facilitates the placement of fins and knitted rolls, in particular the installation. This is because fins can be pushed away or pushed away by one or more rings of the knitted fabric. At least one fin, housing and knitted body may be provided along a common axis of symmetry, and the fin and housing may be radially symmetric. This allows for a very small shape of the noise suppression device.

少なくとも１つのひれが、遮音手段へ入り込む端部において、先細になっているのがよい。これにより組立ての範囲内で遮音手段へのひれの導入が容易にされる。しかし原則的に他の形状例えば面取り形状、鋸歯形状、直線又は波形状も可能である。  At least one fin may taper at the end that enters the sound insulation means. This facilitates the introduction of fins into the sound insulation means within the range of assembly. In principle, however, other shapes are possible, such as chamfered shapes, sawtooth shapes, straight lines or wave shapes.

少なくとも１つのひれが、遮音手段へ入り込む端部の範囲に、空気を通す１つ又は複数の非常通路を持っているのがよい。このような非常通路は、ひれの縁に幾何学的開口によって形成され、騒音抑制装置が凍っている時、開口が動圧の作用により破り開かれて、空気流のための通路を生じるように、これらの開口が形成されている。  At least one fin may have one or more emergency passages for air to pass in the area of the end that enters the sound insulation means. Such an emergency passage is formed by a geometric opening at the edge of the fin, so that when the noise suppression device is frozen, the opening is broken open by the action of dynamic pressure to create a passage for air flow. These openings are formed.

空気出口が少なくとも１つの排気スリットを含んでいるのがよい。特に速い排気を可能にするために、狭く細長い多数の排気スリットを設けるのがよい。  The air outlet may include at least one exhaust slit. In order to enable particularly fast exhaust, it is preferable to provide a number of exhaust slits that are narrow and elongated.

騒音抑制装置が、空気入口の範囲に設けられるふるい素子を持っているのがよい。このようなふるい素子は、遮音手段へ入る前に空気流を絞るのに役立つ。ふるい素子はハウジングとは無関係な素子であってもよいが、これと一体に形成することができる。  The noise suppression device preferably has a sieving element provided in the area of the air inlet. Such a sieving element serves to throttle the air flow before entering the sound insulation means. The sieving element may be an element independent of the housing, but can be formed integrally therewith.

ハウジング、ひれ及びふるい素子はなるべくプラスチックから成っている。原則的に他の材料例えば金属例えばアルミニウム又は材料の組合わせも使用可能である。  The housing, fins and sieve elements are preferably made of plastic. In principle, other materials such as metals such as aluminum or combinations of materials can also be used.

さて本発明が図示されている実施例により以下に詳細に説明される。  The invention will now be described in more detail below by means of illustrated embodiments.

車両の圧縮空気システム用の本発明による騒音抑制装置の一部切欠かれた図を示す。  1 shows a partially cut away view of a noise suppression device according to the invention for a compressed air system of a vehicle.

圧縮空気システムの排気の際排気騒音を抑制するため、騒音抑制装置が圧縮空気システムの排気装置に設けられている。  In order to suppress exhaust noise during exhaust of the compressed air system, a noise suppression device is provided in the exhaust device of the compressed air system.

騒音抑制装置は、ハウジング、遮音手段２及び３つのひれ３ａ，３ｂ，３ｃを含んでいる。ハウジングは、２つの部分即ち蓋１ａ及び底１ｂから構成されている。底１ｂには空気入口４があり、蓋１ａには空気出口５がある。  The noise suppression device includes a housing, sound insulation means 2 and three fins 3a, 3b, 3c. The housing consists of two parts, a lid 1a and a bottom 1b. The bottom 1b has an air inlet 4 and the lid 1a has an air outlet 5.

遮音手段２はハウジング１ａ，１ｂ内に設けられている。３つのひれ３ａ，３ｂ，３ｃは、遮音手段２へ入り込むようにハウジング１ａ，１ｂ内に設けられ、空気入口から空気出口へハウジング１ａ，１ｂを通って流れる空気は、ひれ３ａ，３ｂ，３ｃにより遮音手段２の中へ導かれる。  The sound insulation means 2 is provided in the housings 1a and 1b. The three fins 3a, 3b, 3c are provided in the housings 1a, 1b so as to enter the sound insulation means 2, and the air flowing from the air inlet to the air outlet through the housings 1a, 1b is caused by the fins 3a, 3b, 3c. Guided into the sound insulation means 2.

ひれ３ａ，３ｂ，３ｃはハウジング１ａ，１ｂ，１ｃと一体に形成されているひれ３ａは蓋１ａと一体に形成され、ひれ３ｂ及び３ｃは底１ｂと一体に形成されている。  The fins 3a, 3b and 3c are formed integrally with the housings 1a, 1b and 1c, the fin 3a is formed integrally with the lid 1a, and the fins 3b and 3c are formed integrally with the bottom 1b.

ハウジング１ａ，１ｂ，とひれ３ａ，３ｂ，３ｃは共通な対称軸線６の周りに放射対称に形成されている。ハウジングの蓋１ａはほぼつぼの形状を持ち、ハウジングの底１ｂはほぼ平らである。空気入口４は円形開口として、同様に対称軸線６としての軸線の周りに形成されている。その代りに、空気入口４は軸線６に対してずれて設けられていてもよい。この円形開口は、その縁を、ハウジングの内部へ入り込む環状の第２のひれ３ｂにより完全に包囲されている。  The housings 1a, 1b and the fins 3a, 3b, 3c are formed radially symmetrically around a common symmetry axis 6. The housing lid 1a has a substantially vase shape, and the housing bottom 1b is substantially flat. The air inlet 4 is formed as a circular opening, likewise around an axis as the symmetry axis 6. Alternatively, the air inlet 4 may be provided offset from the axis 6. The circular opening is completely surrounded at its edge by an annular second fin 3b that enters the interior of the housing.

空気出口５は、対称軸線６に対して半径方向に延びるように設けられる細長く狭い多数の排気スリットにより形成され、これらの排気スリットはハウジング蓋１ａの底の縁範囲から始まって蓋外面の大部分にわたって延びている。排気スリット５は第１のひれ３ａにより半径方向に完全に包囲され、このひれ３ａは環としてハウジング蓋１ａの底に形成されて、排気スリット５の始端に隣接し、ハウジング内部へ入り込んでいる。  The air outlet 5 is formed by a number of elongate and narrow exhaust slits provided so as to extend radially with respect to the symmetry axis 6, these exhaust slits starting from the edge region of the bottom of the housing lid 1 a and most of the outer surface of the lid It extends over. The exhaust slit 5 is completely surrounded by the first fin 3a in the radial direction. The fin 3a is formed as a ring at the bottom of the housing lid 1a, adjacent to the start end of the exhaust slit 5, and enters the housing.

第３のひれ３ｃは、ハウジング蓋１ａの内径より若干小さい直径を持つハウジング１ｂの縁に形成されている。第３のひれ３ｃも同様にハウジング内部へ入り込んでいる。  The third fin 3c is formed on the edge of the housing 1b having a diameter slightly smaller than the inner diameter of the housing lid 1a. Similarly, the third fin 3c enters the housing.

空気入口４はふるい素子７により完全に覆われている。ふるい素子７は多数の円形貫通開口を持っている。その目的は、排気の際圧縮空気システムの空気流を絞ることである。ふるい素子７を介して、騒音抑制装置が圧縮空気システムの排気装置に接続されている。ふるい素子なしの騒音抑制装置の構成も同様に可能である。  The air inlet 4 is completely covered by the sieving element 7. The sieve element 7 has a number of circular through openings. The purpose is to throttle the air flow of the compressed air system during exhaust. A noise suppression device is connected to the exhaust device of the compressed air system via a sieve element 7. A configuration of a noise suppression device without a sieving element is possible as well.

遮音手段２は、軸線の周りに巻付けられる熱可塑性糸製編物から成る編物巻き体である。その代わりに、材料として特に金属も可能である。編物巻き体２とひれ３ａ，３ｂ，３ｃは互いに平行に延びるように設けられ、従って軸線６は共通な対称軸線である。  The sound insulation means 2 is a knitted wound body made of a knitted product made of thermoplastic yarn wound around an axis. Instead, in particular metals are also possible as materials. The knitted wound body 2 and the fins 3a, 3b, 3c are provided so as to extend in parallel to each other, and therefore the axis 6 is a common symmetry axis.

ひれ３ａ，３ｂ，３ｃは、その遮音手段２へ入り込む端部（例えば端部８ａ参照）において先細になっている。更にひれ３ａ，３ｂ，３ｃは、遮音手段２へ入り込む端部の縁に、空気を通すための複数の非常通路（図示ぜず）を持っている。  The fins 3a, 3b, 3c are tapered at the end (see the end 8a, for example) that enters the sound insulation means 2. Further, the fins 3a, 3b, 3c have a plurality of emergency passages (not shown) for passing air at the edge of the end portion that enters the sound insulating means 2.

放射対称に形成される第２のひれ３ｂの直径は、放射対称に形成される第１のひれ３ａの直径より少し小さい。第１のひれ３ａ及び第２のひれ３ｂは遮音手段２へ深く入り込んでいるが、その頂点において重ならない。第１のひれ及び第２のひれ３ｂのこの配置により、空気流が第２のひれ３ｂの周りを流れ、第１のひれ３ａの端部と第２のひれ３ｂの端部との間のせまい通路を通過し、第３のひれ３ｃの周りを流れて、空気入口４から空気出口５へ達するようにされる。こうして空気流が遮音手段２を通して効果的に導かれるようにされる。環状のひれ３ａの直径より大きい直径を持つ第３のひれ３ｃは、遮音手段２を通って空気流を排気スリット５の方へ案内するのに寄与する。  The diameter of the second fin 3b formed radially is slightly smaller than the diameter of the first fin 3a formed radially. The first fin 3a and the second fin 3b penetrate deep into the sound insulation means 2, but do not overlap at the apex. With this arrangement of the first and second fins 3b, the air flow flows around the second fin 3b and is narrow between the end of the first fin 3a and the end of the second fin 3b. It passes through the passage, flows around the third fin 3 c, and reaches from the air inlet 4 to the air outlet 5. Thus, the air flow is effectively guided through the sound insulation means 2. A third fin 3c having a diameter larger than that of the annular fin 3a contributes to guiding the air flow through the sound insulation means 2 towards the exhaust slit 5.

ハウジング１ａ，１ｂ、ひれ３ａ，３ｂ，３ｃ及びふるい素子７は、プラスチックこの場合ポリアミドから製造されている。  The housings 1a, 1b, the fins 3a, 3b, 3c and the sieving element 7 are made of plastic, in this case polyamide.

Claims (9)

車両の圧縮空気システム用騒音抑制装置であって、ハウジング（１ａ，１ｂ）、遮音手段（２）及び少なくとも１つのひれ（３ａ，３ｂ，３ｃ）を含み、ハウジング（１ａ，１ｂ）が空気入口（４）及び空気出口（５）を持ち、遮音手段（２）がハウジング（１ａ，１ｂ）内に設けられ、少なくとも１つのひれ（３ａ，３ｂ，３ｃ）が少なくとも部分的に遮音手段（２）へ入り込むように、このひれがハウジング（１ａ，１ｂ）内に設けられ、空気入口（４）から空気出口（５）へハウジング（１ａ，１ｂ）を通って流れる空気が、少なくとも１つのひれ（３ａ，３ｂ，３ｃ）により遮音手段（２）の中へ導かれ、ハウジング（１ａ，１ ｂ）と少なくとも１つのひれ（３ａ，３ｂ，３ｃ）が、共通な軸線（６）の周りに放射対称に形成されていることを特徴とする、騒音抑制装置。A noise suppression device for a compressed air system of a vehicle, comprising a housing (1a, 1b), a sound insulation means (2) and at least one fin (3a, 3b, 3c), wherein the housing (1a, 1b) is an air inlet ( 4) and an air outlet (5), a sound insulation means (2) is provided in the housing (1a, 1b) and at least one fin (3a, 3b, 3c) is at least partly to the sound insulation means (2) This fin is provided in the housing (1a, 1b) so as to enter, and air flowing through the housing (1a, 1b) from the air inlet (4) to the air outlet (5) is at least one fin (3a, 1b). 3b, 3c) led into the sound insulation means (2) , the housing (1a, 1b ) and at least one fin (3a, 3b, 3c) formed radially symmetrically around a common axis (6) Been A noise suppression device characterized by comprising: ひれ（３ａ，３ｂ，３ｃ）がハウジング（１ａ，１ｂ）と一体に形成されていることを特徴とする、請求項１に記載の騒音抑制装置。  2. The noise suppression device according to claim 1, wherein the fins (3a, 3b, 3c) are formed integrally with the housing (1a, 1b). 第１のひれ（３ａ）が空気入口（４）を包囲し、かつ／又は第２のひれ（３ｂ）が空気出口（５）を包囲することを特徴とする、請求項１又は２に記載の騒音抑制装置。The first fin (3a) surrounds the air inlet (4) and / or the second fin (3b), characterized in that the surrounding air outlet (5), according to 請 Motomeko 1 or 2 Noise suppression device. 遮音手段（２）が軸線の周りに巻付けられる編物から成る編物巻き体（２）を含んでいることを特徴とする、請求項１〜３の１つに記載の騒音抑制装置。The noise suppression device according to one of claims 1 to 3, characterized in that the sound insulation means (2) includes a knitted wound body (2) made of a knitted fabric wound around an axis. 編物巻き体（２）と少なくとも１つのひれ（３ａ，３ｂ，３ｃ）が互いに平行に延びるように設けられていることを特徴とする、請求項１〜４の１つに記載の騒音抑制装置。5. The noise suppression device according to claim 1, wherein the knitted roll (2) and at least one fin (3 a, 3 b, 3 c) are provided so as to extend in parallel with each other. 少なくとも１つのひれ（３ａ，３ｂ，３ｃ）が、遮音手段（２）へ入り込む端部（８ａ）において、先細になっていることを特徴とする、請求項１〜５の１つに記載の騒音抑制装置。Noise according to one of claims 1 to 5, characterized in that at least one fin (3a, 3b, 3c) is tapered at the end (8a) entering the sound insulation means (2). Suppression device. 少なくとも１つのひれ（３ａ，３ｂ，３ｃ）が、遮音手段（２）へ入り込む端部の範囲に、空気を通す１つ又は複数の非常通路を持っていることを特徴とする、請求項１〜６の１つに記載の騒音抑制装置。The at least one fin (3a, 3b, 3c) has one or more emergency passages through which air passes in the region of the end which enters the sound insulation means (2). The noise suppression device according to one of 6. 空気出口（５）が少なくとも１つの排気スリット（５）を含んでいることを特徴とする、請求項１〜７の１つに記載の騒音抑制装置。8. A noise suppression device according to claim 1, wherein the air outlet (5) includes at least one exhaust slit (5). 騒音抑制装置が、空気入口（４）の範囲に設けられるふるい素子（７）を持っていることを特徴とする、請求項１〜８の１つに記載の騒音抑制装置。9. The noise suppression device according to claim 1, wherein the noise suppression device has a sieving element (7) provided in the range of the air inlet (4).
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